Stop motion foe spinning- eeames



T. B. STEVENSON STOP MOTION FOR SPINNING FRAMES Filed 001;. as, 1921 2 sheets-sheet 1 LNVENTEIR. I

ATTORNEY a Apr; 10, 1923 T. B. STEVENSON STOP MOTION FOR SPINNING FRAMES I 2 sheets-sheet 2 H r M LLVQA 6Q @QQQQQE 5 Filed Oct 28, 1921 J l a. \w an 5 5 Wm WM w w 09 w 9 a w 2 s. L f. 1 4w u Q74 "T 4 G 0 n m w 5 .0 W 5 4 v LNGMM l- HUM M: w m 1 PIE ,8. fie

m A w @Q Q1 WITNEEEEE Lil/M11 Patented Apr. 10, 1923.

UNITED STATES TILDEN BURT STEVENSON, OF GAROLEEN, NORTH CAROLINA.

STOP MOTION FOR SPINNING FRAMES.

Application filed October 28, 1921. Serial No. 511,111.

' To all whom it may concern:

Be it known that I, TILDEN BURT STEVEN- son, acitizen of the United States, residing at Caroleen, in the county of Rutherford and State of North Carolina, have invented certain new and useful Improvements in Stop Motions for Spinning Frames, of which the following is a specification.

This invention relates to automatic stop motions for spinning frames, and has for one of its objects to provide a simply constructed attachment whereby the actuating mechanism is automatically stopped when a predetermined quantity of yarn has been wound upon the bobbins or quills.

Another object of the invention is to provide a device of this character which may be applied to spinning frames of various forms without material structural change. With these and other objects in view the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims, and in the drawings illustrative of the preferred embodiment of the invention. Figure 1 is a vertical sectional elevation of a conventional fly frame with the improvement applied.

Fig. 2, is a. section on the line 22 of Fi 1.

Fig. 3 is an end view, and- Fig. 4 is a side view of'the trip block, detached. Figs. 5 and 6 are detail views representing 3 a modification in the arrangement of the trip block device.

Figure 7 is a fragmentary view, in section, illustrating one of the hanger supports for the guide rod.

The supporting frame is represented conventionally and includes end members 10, i a plurality of intermediate transverse memhers, one of which is represented at 10,

bers and transverse members.

Bearing upon the end and transverse membersand supported thereby, are deck they form no part of the present invention.

and side rails 11 connected to the end memtion and stepped at their ends on the horizontal supporting members 14, as shown in Fig. 1.

Supported for rotation through the members 14 are vertical rock shafts, one of which is represented at 18, and with a crank arm 19 at the lower end beneath the lower bobbin support 14.

At their upperends the shafts 18 are provided with operating handles one of which is shown at 20, of the usual construction.

Attached to the end members 10 of the main frame are lateral supporting memhers 21 for the yarn bobbins or quills, represented. conventionally at 22, the latter are rotated by belts 24 from pulleys 25 on the main drive shaft 26.

The spinning rails of the usual construction, are represented at 27, and movable vertically to uniformly feed the yarn to the bobbins 22 in the usual manner, the rail operating means not being shown as Mounted in the usual manner upon the rail members 11 are the drawing rolls represented conventionally .at 28, of the usual construction.

Slidably supported in extended bearings 29 on the lower ends of hangers 29 depending from one of the deck members 12 is a horizontal guide rod 30, and supported for rotation in a hanger 31 likewise depending from the deck member 12 is a guide sheave 32 for a pull member 33 attached at one end to a weight 34. Slidable on the rod 30 is a trip block 35 having an encircling groove 36, and a depending lug 37 the latter perforated to receive the adjacent end of the pull member 33.

A stop collar 38 is adjustably coupled to the rod 30 by a set screw 39, and held against the block 35 by the pull of the weight 84.

Mounted on the main drive shaft 26 is a tight pulley 40 and a loose pulley 41 with which a driven belt 42 is associated in the usual manner.

A shipper rod 43 is supported in hangers 44 depending from the frame and carrying a belt shifting yoke 45 of the usual construction, to engage the belt 42 and shift the latter from the tight to the .loose pulley or from the loose to the tight pulley when 110 the pper r 4:8 is actu t n the usu l m nner.

Attached to the shipper rod 43, preferably by a set screw 26, is an arm 47 having a pin 48 extending through a slot 39 in the arm 19. l

By this means it will be obvious that the shipper rod 43 is operable by a rotary motion applied to the rod 18 by the handle 20.

Attached to the shipper rod 43, preferably by a set screw 50, is another arm 51 perforated at the tree end to engage the slidable rod 30, as shown in Fig. 2. By this arrangen'ient it will be obvious that when the rod 30 is moved longitudinally, the stop collar 38 will move the shipper rod 413 by its action on. the arm '51.

Depending from one of the deck members 12 is vertically slotted hanger 52, and pivoted to a pin 53 adj ustably secured in the slot of the hanger is a trip lever 54 normally engaging at one side of its pivot in the groove 36. of the trip block 35 and with the other .end extending into the path of the adjacent spinning rail 27.

The lever member 5 is provided with an adjusting screw 55 to control its movement relative to the spinning rail.

In starting the machine the operator moves one of the lever arms 20 to rotate the rock shaft 18 and cause the arm 19 to same time move the trip bloclr 35 with it and enable the shorter end of the lever 5% to engage the groove 36 and thus lock the block at one-end of its path. The entrance ottthe lever 54 into the groove 36 depresses "the end carrying the adjusting screw 55 toward the spinner rail 27.

.Then so long as the yarn on the bobbins 22 does not increase above the normal, or so long as the spinning rail 27 is not elevated above the normal, the mechanism will re- "main inactive.

The height to which the bobbins 22 are filled is governed by the height to which the .rail 2'? is elevated, hence it the operator tails to manually stop the motion by operatzing one Of the hau tlles 20. when the varn bobbins have been filled to the required height, the continued or abnormal upward movement he rail will engage the ad giusting screwt- 55, and the longer end of the lever 54 will be elevated and the shorter end depressed and release the block 35 and per- :niit the weight 3 1 to pull the block against the stop collar 38 and cause the latter to move the arm and shipper rod 43, and

\Vhen the machine is to be againstarted, the operator simply operates one of the handles 20, as before described, and thus actuates the shipper mechanism to transfer the belt 12 to the tight pulley again.

This latter movement of the shipper rod causes the arm 51 to engage the collar 38 and return the rod 30 to its former position, this movement picking up the trip block and also returning it to its former position against the resistance of the weight :3 and causes the groove 36 to be again engaged with the lever 54;, and thus set the lever for action by the spinner rail when it is again moved upwardly above the normal.

A slot in the hanger 52 enables the lever 54 to be adjusted to control its movement, while the adjusting screw 55 and set screws 39 and 50 enable the parts to be adjusted as required. i I

A set of the stop motion devices maybe arranged for operation with both sides of the frame, but as they are substantially alike one set only is shown for illustration.

The preferred embodiment of the inven-;

tion is disclosed in the drawings and set forth in the specification, but it will be un derstood that modifications within the scope of the claimed invention may be made in the construction without departing from the principle of he invention or sacrificing any of its advantages.

A spring of suitable construction and, strength may be substituted for the weight 34. i

The member 35 may be slidably mounted directly on the shipper rod, and operating directly against the member 47, as shown in Figs. 5 and 6.

Ha ving thus described is claimed as new is 1. A belt shifting device comprising a shipper'rod adapted to co-act with a drive belt to shift it to and from a driven element, a shittable element, a slidably sup ported guide rod provided with a stop collar, an arm carried by the shipper rod and extending into the path ofthe stop collar, a trip block slidably mounted on'saidr'guide rod. counter-balanced means for yieldably holding: the trip bloc]: in contact with said stop collar. ant a lever pivotally supported intermediate its ends and having one/end entend in the path of said shiftable elenien 11s other end extending into the path oi s id trip block and adapted when actuated by said shiftable -element to the invention, what release said (.UllniLGf-blll-IlGfifl means causing belt to: shift it to; and from a driven element, .a .shiftaole element, a slidably suppe ited guide rod provided with a stop collar, an

arm carried by the shipper rod and extending into the pathof the stop collar, a trip block slidably mounted on said guide rod, counter-balanced means for yieldably holding the trip block in contact with said stop collar, a lever pivotally supported intermediate its ends and having one end extending into the path of said shiftable element and its other end extending into the path of said 10 trip block and adapted when actuated by said shiftable element to release said counter-balanced means causing thereby the shifting of said guide rod whereby said collar will shift said arm to move the shipper rod to shift the belt from the driven ele ment, and means permitting adjustment of said level.

In testimony whereof, I afiix my signature hereto.

TILDEN BURT STEVENSON. 

